Questions tagged [hardware-raid]

RAID solution with hardware assistance. RAID parity calculations can be performed by either the main CPU, or by a separate processor on the RAID controller card.

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16 views

HPE SSA: After completing the configuration - reboot the system

From the HPE ProLiant System Utilities (BIOS) I booted into HPE Smart Storage Administrator (SSA) to migrate a logical drive with RAID6 (and existing data) to RAID5. After starting the migration task, ...
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MegaCLI not seeing RAID card (LSI 9271-4i)

I have a server with LSI 9271-4i card and 4 HDDs. One day the server started malfunctioning and it wouldn't list any drive information. I rebooted the server and it never came up, so I have been using ...
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How do I expand my VD on LSI 9361-16i?

I've got a 9361-16I installed in a supermicro sc847. I have the 2 expanders running in a cascaded configuration with both of them chaining off port 0-4 of the card. They are being exposed as enclosure ...
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Setting up raid hardware with out deleting data

so I have a home lab, and in the beginning, I started with only 1 DISK, and in the raid config, I bypassed the raid because I didn't have 2 disks to make a RAID 10 or 1, but now, I want some ...
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How is RAID3/4 is implemented for more than 4 drives?

I understand that, RAID 3/4 for 4 drives is: Parity Drive = D1 XOR D2 XOR D3. But what is there 5 drives or more? For example 5 or 6. How many parity drives is needed, and how XOR algorithm is working ...
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Areca RAID controller, always runs check after reboot

In the machine where I keep the backups for when a datacenter burns down I have an older Areca RAID controller (ARC-1231ML). For some reason, it always runs a check on all volumes directly after ...
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64 views

How can I know if one disk faults on RAID 5?

I have 4 x 8TB configured on RAID 5, as it is if one disk faults the system can survive. But if more than 1 disk faults, the system will be destructed. How can I check if one disk is already faulted ...
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319 views

RAID-10 - replace the raid controller

I have a RAID-10 configured on LSI Logic 9211-4i controller (4 disks). The controller seems to be faulty. Every few days it stops to work, Vmware logs this: Lost access to volume xxxxxxxx-xxxxxxxx-...
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P830 Remounting Smart Array

I've followed HPQ's "Moving Drives and Arrays" criteria and pulled my data array (10+2) cold. Therefore I would expect the data array to mount on any HPE smart array server. The one ...
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1answer
42 views

Hp Proliant DL120 G7 won't show ORCA

I have on old server, HP Proliant DL120 G7. I configured it with 4 500GB Hard Disk in RAID 10. With this configuration I was able to enter in ORCA setup and the hard drives where connected. Then I ...
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HPACUCLI Remotely make active spare permanent member

We have an old HP server - we let the HPE contract expire as it'll be decom'd soon, and our monitoring has flagged a failed disk. For various reasons it's difficult to organise access to the server, ...
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RAID 5 - Data corrupted after drive failure?

I have a workstation that uses an adaptec RAID 71605 controller with 4x8TB WD drives in a RAID5 config. One of these drives failed, and after replacing it and rebuilding the RAID, a lot of the data ...
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683 views

Differences between HW RAID and ZFS

Background I'm installing Proxmox Virtual Environment on a Dell PowerEdge R730 with a Dell PowerEdge RAID Controller (PERC) H730 Mini Hardware RAID controller and eight 3TB 7.2k 3.5" SAS HDDs. I ...
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xfs: can't read superblock

I get the following error: [root@mediaserv ~]# mount /dev/mapper/media1 /media mount: /media: can't read superblock on /dev/mapper/media1. This is Fedora 33. I have a RAID5 of 8x 8TB WD Red drives ...
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PERC 6/i Integrated RAID-0 from degraded and unconfigured RAID-10

A 4-drive RAID10 setup was made on a PERC 6/i Integrated card. One disk failed. While waiting for a disk replacement, the controller card died. Card was replaced, but unfortunately the foreign ...
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DL380 G10 - P816 controller - Extending LD produces error about max size, even though there is more space in the Array

Array A on this DL380 G10 consists of 9 1.9TB drives in a RAID 5 config. It reports unused space of 619995 MB. There are two logical drives, LD 1 with 13.55 TB (14,000,000 MB), and LD 3 with 97.66 GB (...
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Getting a RAID controller to surface scan on a sane schedule

The controller I'm presently working with is quite old, the HP Smart Array P400; in part I want to know how to deal with that controller, but I'm also interested in the general perspective -- if there ...
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426 views

RAID-5 inoperable, but no disk failure

Inheritted a system with a 3ware LSI 9750-8i having five disks and RAID-5. I see a message about "RAID-5 INOPERABLE" for u1 but see no disk failure for the only disk (p1) in the unit. Unit ...
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143 views

Can not access PowerEdge Expandable RAID Controller Configuration Utility

I've looked online but can't find a solution. On post it says press ctrl+r to enter configuration utility and i do that. it then says 1 virtual drives found on the host adapter 1 virtual drives ...
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Installing Ubuntu Server on AMD chipset RAID array

I'm trying to install Ubuntu Server on a TRX40-based baremetal machine. In order to ensure the availability of this machine, I want to boot the OS from a RAID1 array. This has proved harder than ...
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243 views

How to get temperature readings of HP P420 RAID PCI-e card?

I have an HP Proliant ML110 G9 Server. Added an HP Smart Array P420 PCI-E card to have real hardware RAID on the server. Everything works fine, but I noted that the P420's processor was extremely hot (...
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Is putting Server 2019 (full os with hyper-v) and 2 2019 Guests on a single two-disk Raid 1 array reliable enough?

We're currently experiencing some significant cpu/ram performance issues with 2 VM's on our current HPE 2015 tower server (2x Xeon 8c/8t 1.7ghz) running server 2012 for HV and guests (10 guests total),...
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28 views

Data layout on RAID-1 Array

For the sake of this question, assume a RAID-1 array of two identical drives. RAID-1 (Mirroring) stores an identical copy of the data on both drives. How identical is the drive layout? Are the drives ...
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I had some drbd (i guess block devices?) on my server, after a crash they are all gone

I am not a sys admin but inherited some servers setup with no documentation in linux. Today the server died in a way it was unresponsive and the VMs running on it down...after a good few hours the ...
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Is it possible to show empty slots using StorCli?

I have been searching for a while but I couldn't find any way to show "empty/available/free" drive-slots connected to a LSI card using storcli. I don't even know if the hardware supports it. ...
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RAID Cache cheap fail status [duplicate]

I have a question about raid cache cheap, I know there is a battery back for raid cache to prevent any data lose, But what happen if the raid cache itself fail? I mean the cheap and IC, if we lose the ...
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309 views

HP Server, HP Drives but no drives detected

HP ProLiant ML350P G8 with 6 HP 2TB 7.2 RPM SAS drives and a SmartArray p420i/512mb FBWC. All a recent purchase. Unfortunately it's not detecting the drives. I checked the drives for compatibility ...
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260 views

Can I Move RAID-1 (Mirrored) Hard Drives From a Hardware Raid Controller to Software Raid?

Old server: 3ware 9650se PCIe hardware RAID controller with 2 sets of RAID-1 (4 total drives, 2 mirrored) with a 5th drive as a hot-spare. New server: Software RAID is the only option. Plan to run ...
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1answer
465 views

RAID supercapacitor only card (to replace BBU maintenance free) [closed]

An excellent article here: https://www.servethehome.com/raid-controller-batteries-time-bombs-you-need-to-replace/ Are RAID controller lithium-ion batteries ticking time bombs within your server? Over ...
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411 views

Recover data from IBM x3650 with SYS BRD ERR

As in every sysadmin nightmare after shutting down a server I'm not able to power it on any more. The server is an old IBM x3650 M4, which has been shut down because unused and of course when not ...
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194 views

RAID controller link speed with mixed drive types

What will be the negotiated speed if I mix 6 and 12gbps SATA and SAS drives in a single h/w RAID controller, but keep them in the separate raid groups? Let's take LSI (Dell PERC H730) as an example ...
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131 views

SAS/RAID controller non-ecc ram

I have Adaptec 51245 controller (I know it is old but I got it for free) that I use in my server. As far as I know it is highly recommended to use ECC RAM as system memory, but what about RAID ...
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Replaced a RAID controller, now Red Hat won't start :(

I'm working with a client's HP ProLiant ML110 G7. At the beginning of the week, it wouldn't boot or POST at all. Over the course of the week, we've replaced the memory, motherboard, and power supply....
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Very Low IOPs on Array of 16x 15K SAS Drives

I'm having issues with one of our servers that is running 16x 900GB 15K SAS drives in a RAID 1+0 Array on a PERC H710P, under normal load its doing ~450 IOPs (almost all writes) and has a backlog of ~...
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274 views

Does this SMART report indicate a bad disk?

On a remote server, I have 2x3TB drives set in raid 0 with SLI raid card. I tried to run SMART tests to see if drives have a problem because server become unresponsive and one drive had to be put back ...
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Crucial MX500 new firmware rev M3CR032 causes RAID controller failures?

I've been using Crucial MX500 disks in Dell hardware for a while now (non-server class disk, I know, I know... we're cheap) with firmware M3CR023. But the latest batch arrives with revision M3CR032 --...
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What does “SSC WriteBack” mean

When I dump LSI RAID 9260-8i configuration by: /storcli /c0 show all the Supported VD Operations section looks like: Read Policy = Yes Write Policy = Yes IO Policy = Yes Access Policy = Yes Disk ...
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165 views

BroadCom MegaRAID SAS 9361-24i Performance Issues

I have piles of 1TB Samsung mSATA drives that I'm trying to re-purpose for sever storage. I purchased 24 - StarTech 25SAT22MSAT adapters and fitted them with 2 mSATA drives each. I then enabled the ...
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860 views

HDD SMART interpretation

I need your opinion if the drive below is failing. When I run "smartctl -a /dev/sda -d megaraid,1", 2 errors are posted at the end of the output, stating "Error: WP at LBA". I don't see anything ...
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ZFS on top of a bunch of Raid0 (1 disk) volumes with battery backed write-cache

I'm reinstalling a workstation (not a headless server) with an Intel RAID card with BBU and 4GB internal cache. My current setup uses ZFS on a pair of mechanical disks and a partition on an SSD for ...
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527 views

What is the risk of RAID 0 for a *single* disk versus no RAID on that disk?

I have a server that I'm having trouble with getting the drive to show up without using RAID. However, that's different question. This question is about the problems running a RAID 0 on a root drive ...
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1answer
221 views

SSD does not show up in server without RAID

I have a server Supermicro SuperServer 6017R-72RFTP with the motherboard X9DRW-7TPF. I have a 1TB Samsung SSD. The SSD shows up when the server boots and in the BIOS, but when I go to install an OS it ...
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What is the difference between RAID defined by host controller versus Linux RAID defined by software?

I have a Proliant DL380 G6 Server with 4 146GB 2.5" SAS drives. In Ubuntu, (I'm using Webmin to manage), I see a single physical volume, as though there actually is only one disk. If I run the ...
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337 views

How to mount a RAID array on a Linux server if it does not appear to be listed?

I am helping to administer two CentOS 5 servers, on the "user" side of things. A RAID 1 array and a separate single hard drive were recently added by IT support. According to the IT support, both of ...
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Hardware Raid 1 vs Raid 10

What are the advantages/disadvantages of raid 1+0 vs raid 1 regarding the following: Recoverability. How easy is it to recover data from a raid 1+0 array if the raid array controller fails and you ...
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894 views

RAID 10 Single drive is showing up as multiple drives in Windows Server 2016

I installed a Windows Server 2016 in a physical server with RAID 10 (LSI card), whose configuration is shown below: Even though the RAID configuration shows one 3.725 TB drive, this shows up as 2 ...
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238 views

How to Add Another Physical Drive to Adaptec maxView RAID6 Logical Drive

I have an ASR71605. I've added another drive to the controller which shows up in max view as ready. The logical drive is RAID 6 with 5 drives in it now. I'm adding this additional drive which is ...
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2k views

Debian on HP Gen9 — most recent hpssacli appears to be too old

I've installed a recent Debian 10 Buster system on to the server, which is HPE DL360 Gen9. It has P440ar adapter, which works with the "new" hpsa driver. As far as I remember, RAIDs were configured ...
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31 views

Data recovery from RAID5 volume managed by hardware controller

I am attempting to salvage as much data as possible off a failed 12 TB RAID-5 volume comprising 4 x Western Digital WD4000FYYZ 4TB hard drives in an OWC RAID enclosure that is based on the Oxford ...
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471 views

Swap failing drive on ProLiant with P410

On an old HP SE316M1R2 (Same machine as the much more common ProLiant DL 160 G6) I have a 4x450GB Raid 5 array handled by the stock P410 Smart Array controller, fw ver. 8.40.30.00. Drives are genuine ...

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